2 * Not all machines define FD_SET in sys/types.h
7 /* Was: (defined(RS6000)||defined(SYS_PTX))&&!defined(_BSD) */
8 /* Could say: !defined(FD_SET) && defined(HAVE_SYS_SELECT_H) */
9 #if defined(HAVE_SYS_SELECT_H) && !defined(_BSD)
11 #include <sys/select.h>
14 extern int select P((int width, fd_set *pReadFds, fd_set *pWriteFds,
15 fd_set *pExceptFds, struct timeval *pTimeOut));
20 #if !defined(FD_SET) && !defined(SYS_WINNT)
23 #define FD_SET(n, p) ((p)->fds_bits[(n)/NFDBITS] |= (1 << ((n) % NFDBITS)))
24 #define FD_CLR(n, p) ((p)->fds_bits[(n)/NFDBITS] &= ~(1 << ((n) % NFDBITS)))
25 #define FD_ISSET(n, p) ((p)->fds_bits[(n)/NFDBITS] & (1 << ((n) % NFDBITS)))
26 #define FD_ZERO(p) memset((char *)(p), 0, sizeof(*(p)))
31 unsigned int fds_bits[1];
35 #endif /* _ntp_select_h */